2 years ago

Solve the inequality. -1.5(4x+1) ≥ 45-25(x+1)

Mathematics

1 answer:

777dan777 [17]2 years ago

3 0

Answer:

x ≥ 21.5/19

Step-by-step explanation:

-1.5(4x + 1) ≥ 45 - 25(x + 1)

-6x - 1.5 ≥ 45 - 25x - 25

-6x + 25x ≥ 45 - 25 + 1.5

19x ≥ 21.5

x ≥ 21.5/19

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Answer:

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Step-by-step explanation:

Given

$Volume = 924cm^3$

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Required

Show that $x^2+12x-220=0$

The volume is calculated as:

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Open the brackets

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Solving further:

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$x^2 + 22x - 10x - 220 = 0$

Factorize:

$x(x + 22) - 10(x + 22) = 0$

$(x - 10)(x + 22) = 0$

Split:

$x - 10 = 0;\ \ \ x + 22 = 0$

$x = 10\ \ \ x = -22$

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